Hello Stefan,
Possibly it is better to address this to the check_mk mailing list(s)
See here: https://mathias-kettner.de/check_mk_lists.html
I see the remote site as dead in WATO and with following errors ins Monitoring:
Remote Site: Germany, XXX - Livestatus error
The remote monitoring host is down
Remote Site: Germany, XXX - Livestatus error
Unhandled exception: 400: Site is currently not reachable.
I use check_mk enterprise and my configuration may vary from yours:
'XXX': {'alias': u'Remote Site: Germany,XXX',
'disable_wato': True,
'disabled': False,
'insecure': False,
'multisiteurl': 'http://10.10.10.10/XXX/check_mk/',
'persist': False,
'replicate_ec': False,
'replicate_mkps': True,
'replication': 'slave',
'secret': '*****',
'socket': ('proxy',
{'cache': True,
'channel_timeout': 3.0,
'channels': 5,
'connect_retry': 4.0,
'heartbeat': (5, 2.0),
'query_timeout': 120.0,
'socket': ('10.10.10.10', 6557)}),
'status_host': ('test', 'hostname'),
'timeout': 10,
'url_prefix': 'http://10.10.10.10/XXX/',
'user_login': True},
Regards
Mike
From: omd-users-boun...@lists.mathias-kettner.de
[mailto:omd-users-boun...@lists.mathias-kettner.de] On Behalf Of Nottorf, Stefan
Sent: Donnerstag, 16. Februar 2017 13:35
To: omd-users@lists.mathias-kettner.de
Subject: [omd-users] Handling of absent remote sites in multisite setup
Hello,
I set up a distributed monitoring using multisite; I have multiple remote
sites, each monitoring a number of hosts and services, and a "viewing" site,
which just reads the values from the remote sites and makes their check results
viewable.
If the remote site is up and the host of the remote site is pingable everything
works fine (as expected).
If the remote (omd-)site is down but the host of the remote site is pingable:
site is shown as "dead" (as expected).
If the host of the remote site is physically disconnected (can't be pinged),
the viewing site times out completely, regardless if there are other remote
sites still reachable (and the viewing site could show those, at least).
I expected the disconnected site to display as "dead".
Excerpt from multisite.mk of the viewing site:
[...]
# Sites to connect to. If this variable is unset, a single # connection to the
local host is done.
sites = {
"REMOTEA" : {
"alias" : "Remote site 1",
"socket" : "tcp:192.168.20.19:6559",
"url_prefix" : "/remotea/",
},
"REMOTEB" : {
"alias" : "Remote site 2",
"socket" : "tcp:172.16.20.19:6570",
"url_prefix" : "/remoteb/",
},
"REMOTEC" : {
"alias" : "Remote site 3",
"socket" : "tcp:172.150.20.19:6580",
"url_prefix" : "/remotec/",
},
}
Error Message when retrieving the dashboard of the viewing site (named
"nagios")is "Proxy Error The proxy server received an invalid response from an
upstream server.
The proxy server could not handle the request GET /nagios/check_mk/dashboard.py.
Reason: Error reading from remote server
Apache/2.2.15 (CentOS) Server at <hostname> Port 80"
Questions:
1) Did I misconfigure something or is this known behavior?
2) Is there a workaround that the unreachable site is considered "dead" instead
of timing out my viewing site?
Best regards,
Stefan
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